Add a comment for the ARM_F{0..7}_REGNUM registers

[deliverable/binutils-gdb.git] / gdb / arch / arm.h

diff --git a/gdb/arch/arm.h b/gdb/arch/arm.h
index 13f030af82ca76b27e80b9b73dc849e8bd108636..2d9e87eb428ee8b238804dff01e9eeb03198a23d 100644 (file)
--- a/gdb/arch/arm.h
+++ b/gdb/arch/arm.h
@@ -31,6 +31,7 @@ enum gdb_regnum {
   ARM_SP_REGNUM = 13,          /* Contains address of top of stack */
   ARM_LR_REGNUM = 14,          /* address to return to from a function call */
   ARM_PC_REGNUM = 15,          /* Contains program counter */
+  /* F0..F7 are the fp registers for the (obsolete) FPA architecture.  */
   ARM_F0_REGNUM = 16,          /* first floating point register */
   ARM_F3_REGNUM = 19,          /* last floating point argument register */
   ARM_F7_REGNUM = 23,          /* last floating point register */